REVISION OF SPECIES OF STILOBEZZIA KIEFFER 89 



that decora Kieffer (1921) from Taiwan is synonymous with notata; 

 Kieffer states that the females of decora bear no batonnets on tar- 

 somere V. In view of the intraspecific stability of this character, 

 until the types can be reexamined or additional material seems to 

 confirm it, we must provisionally recognize the species. 



34. Stilobezzia (Stilobezsia) pseudofestiva Das Gupta and Wirth, new species 



Figures 6, 74 



Female. — Length of wing 1.45 (1.38-1.53, n=ll) mm; breadth 

 0.56 mm. 



Head: Vertex with 12 hairs. Antenna (fig. 6) with lengths of III-XV 

 as 14-8-8-8-8-8-8-10-20-21-22-24-36; AR 1.71; X longer than IX. 

 Palpal segments as 5-18-21-13-21; III without sensory pit. Mandible 

 with 6-8 teeth (av. 7.0, n=18). 



Thorax: Color pattern of scutum of the notata type, without 

 posterior dark crossband. Scutellum with 5-6 bristles (av. 5.6, n=10). 



Legs: Color pattern as in f estiva, but the subapical pale ring on 

 hind femur prominent, the dark markings intense on each side. 

 Hind leg with lengths from femur to V as 89-82-41-20-7-5-12; TR 

 2.1; hind tibial comb with 9-11 spines (av. 9.8, n=13); claws and 

 batonnets as in festiva. 



Wing (fig. 74a): Color pattern as in festiva; CR 0.71; IRC to 2RC 

 lengths as 17:60; r-m to stem M lengths as 11:31; vein M 2 with short 

 basal interruption. Halter with pale stem; knob entirely dark brown. 



Abdomen: Dorsal color pattern (fig. 76c?) of festiva type. Sper- 

 mathecae (fig. 766) oval with short slender necks, moderately to well 

 sclerotized, subequal, measuring 0.059 mm by 0.047 mm and 0.055 

 mm by 0.045 mm. Genital sclerotization as in figure 76c. 



Male.— Length of wing 1.33 (1.23-1.47, n=ll) mm. 



Similar to the female with the usual sexual differences; dorsal 

 color pattern of abdomen as in figure 76e. Genitalia (fig. 76/-A) of 

 the festiva type, but tergum IX more quadrate (approaching notata 

 type) ; basistyle short, the base of the basidorsal process relatively 

 broad; dististyle subequal in length to basistyle; aedeagal sclerites 

 slender at base, broadening distad to curved tip; paramere a broad, 

 curving, heavily sclerotized blade with curved tip as in festiva, but 

 slightly longer. 



Distribution. — Thailand; Malaya. 



Types. — Holotype male, allotype female, Pechaburi, Thailand, 27 

 Dec, 1958, Manop R. collector, light trap (USNM 69471). Paratypes, 

 20 males, 10 females. M ALA YA : Selangor, Kuala Lumpur, Aug. 1958, 

 R. Traub, light trap, 2 males. Selangor, Rantau Panjang, Aug. 1960, 

 light trap, 1 female. THAILAND : Bangkok (Huaykwang, Plukchit, 



